The Number

19901

Nineteen Thousand Nine Hundred and One

Nearby Numbers

Positive, nonzero integers within three units

19898
Nineteen Thousand Eight Hundred and Ninety-Eight
19899
Nineteen Thousand Eight Hundred and Ninety-Nine
19900
Nineteen Thousand Nine Hundred
19902
Nineteen Thousand Nine Hundred and Two
19903
Nineteen Thousand Nine Hundred and Three
19904
Nineteen Thousand Nine Hundred and Four

Scientific Notation

Scientific notation expresses a quantity as the product of its significand with 10 raised to an integer exponent.

1.9901e4

Reciprocal

A number multiplied with its reciprocal is one.

0.00005024873121953671

The reciprocal of 19901.

Palindrome?

A numerical palindrome has the same value when all of its digits are reversed.

The number 19901 is not a palindrome.

Not A Prime Number

A prime number is a positive integer that is divisible only by itself and one.

Nineteen thousand nine hundred and one is a composite number with 4 total factors (including 1 and itself).   See primes in Base 10 Decimal

A Composite

Composites have more than just these two factors.

Nineteen thousand nine hundred and one is a composite number with 4 total factors (including 1 and itself).

Prime Factors

The prime factors of a positive integer are the integers that divide it exactly and are also prime.

The number nineteen thousand nine hundred and one has the following 2 prime factors:

7
Seven
2843
Two Thousand Eight Hundred and Forty-Three

Prime Factorization

The prime factorization of a positive integer is the unique list of prime factors together with their multiplicities

71 · 28431 = 19901

Base Conversions

The number nineteen thousand nine hundred and one in 35 different bases